In this article we will be seeing how to enable the External Tool "Create GUID" in Visual Studio 2010. Sometimes in Visual Studio 2010 you may not be finding "Create GUID" option in the Tools menu, which is very important for SharePoint developers.
Enable Create GUID option in Tools Menu:
Open Visual Studio 2010.
Go to Tools menu.
Click on External Tools.
External Tools wizard will pop up, click on Add.
Enter the Title as "Create GUID".
In the command give the path of the guidgen.exe.
The path for the guidgen.exe is C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Bin\guidgen.exe.
Now you will be able to see the "Create GUID" option in the Tools menu.